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GUI: implement randomize

This commit is contained in:
tildearrow 2022-03-12 02:24:23 -05:00
parent 3e890a391b
commit a6eec9f7c4
1 changed files with 28 additions and 0 deletions
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28
src/gui/gui.cpp
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@ -3201,6 +3201,34 @@ void FurnaceGUI::doRandomize(int bottom, int top) {
finishSelection();
prepareUndo(GUI_UNDO_PATTERN_RANDOMIZE);
int iCoarse=selStart.xCoarse;
int iFine=selStart.xFine;
int ord=e->getOrder();
for (; iCoarse<=selEnd.xCoarse; iCoarse++) {
if (!e->song.chanShow[iCoarse]) continue;
DivPattern* pat=e->song.pat[iCoarse].getPattern(e->song.orders.ord[iCoarse][ord],true);
for (; iFine<3+e->song.pat[iCoarse].effectRows*2 && (iCoarse<selEnd.xCoarse || iFine<=selEnd.xFine); iFine++) {
maskOut(iFine);
if (iFine!=0) {
int absoluteTop=255;
if (iFine==1) {
if (e->song.ins.empty()) continue;
absoluteTop=e->song.ins.size()-1;
} else if (iFine==2) { // volume
absoluteTop=e->getMaxVolumeChan(iCoarse);
}
for (int j=selStart.y; j<=selEnd.y; j++) {
if (top-bottom<=0) {
pat->data[j][iFine+1]=MIN(absoluteTop,bottom);
} else {
pat->data[j][iFine+1]=MIN(absoluteTop,bottom+(rand()%(top-bottom)));
}
}
}
}
iFine=0;
}
makeUndo(GUI_UNDO_PATTERN_RANDOMIZE);
}